Performance of Adhesives for Bonding Fresh Concrete to Hardened Concrete under Application Conditions

신ㆍ구 콘크리트 접착제의 시공조건에 따른 성능

In vertical construction joint, adhesives such as epoxy, acrylic, latex, etc. have been usually used for bonding fresh concrete to hardened concrete. In this study, performance of adhesives under various application conditions was investigated through tests for slant shear and flexural strength. From the results of the tests, it is found that superior bonding performance can be obtained under good surface preparation without adhesive when high strength concrete is used.